User manual ICOM IC-M90

[. . . ] INSTRUCTION MANUAL iM90 VHF MARINE TRANSCEIVER This device complies with Part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference. SAFETY TRAINING INFORMATION Your Icom radio generates RF electromagnetic energy during transmit mode. This radio has been evaluated for compliance at the distance of 2. 5 cm with the FCC RF exposure limits for "Occupational Use Only". In addition, your Icom radio complies with the folW ARN ING lowing Standards and Guidelines with regard to RF energy and electromagnetic energy levels and evaluation of such levels for exposure to humans: · FCC OET Bulletin 65 Edition 97-01 Supplement C, Evaluating Compliance with FCC Guidelines for Human Exposure to Radio Frequency Electromagnetic Fields. [. . . ] q Push [CH/WX·U/I/C/L] for 1 sec. to several times to select the desired channel group (USA, INT, CAN) to be programmed. to select the call channel. · "CALL" and call channel number appear. I Lock function This function electronically locks all switches (except for ]) to prevent accidental [PTT], [SQL·MONI] and [Hi/Lo· channel changes and function access. to turn the lock function ON and OFF. Appears while the lock function is used. I Signal strength indicator function The received signal strength level is indicated by number of bars as below. This indicator can be hidden by using the set mode (p. 20) if desired. Indication Signal strength No signal or very weak e Push [16·9] again for 3 sec. (until a long beep changes to 2 short beeps) to enter call channel programming condition. · Call channel number to be programmed flashes. r Push [Y]/[Z] to select the desired channel. Strong Middle Weak I Monitor function t Push [16·9] to program the displayed channel as the call channel. · The call flashing. channel number stop The monitor function releases the noise squelch mute to check the volume level. 18 for details of the monitor switch action. to activate the monitor function. ·" " appears and audio is emitted. 10 BASIC OPERATION 4 I Adjusting the squelch level To adjust the IC-M90's squelch level, use the [Y]/[Z] keys as desired below. In order to receive signals properly, as well as for the scan to function effectively, the squelch must be adjusted to the proper level. q Push [SQL·MONI], then adjust the squelch level with [Y]/[Z]. - "SQL" indicator starts blinking. - There are 11 squelch levels to choose from: OP is completely open; 10 is tight squelch; 1 is loose squelch level. - When no switch is pushed for 5 sec. , the transceiver returns to normal condition. I Voice scrambler operation D Activating the scrambler The voice scrambler provides private communications. In order to receive or send scrambled transmissions, you must activate the scrambler function first. q Select an operating channel except Channel 16, 70 or weather channels. w While pushing and holding [SQL·MONI], push [SCAN·DUAL]. · "SCRM" appears. 4 w Push [SQL·MONI] again to return to normal condition. Blinks during the squelch level adjutment. Indicates the squelch level. Appears when the voice scrambler function is in use. e To turn the scrambler function OFF, repeat step w. · "SCRM" disappears. Push I Backlighting function This function is convenient for nighttime operation. The backlighting brightness can be adjusted in the SET mode. 18) Push any switch except for [PTT] to turn the backlighting ON. · The backlighting is automatically turned OFF after 5 sec. of inactivity. D Programming scramble codes There are 32 codes (1 to 32) available for programming. In order to understand each other, all transceivers in your group must have the same scramble code, as well as the same scrambler unit. [. . . ] 11) Push [SQL MONI], then adjust the squelch level with [Y]/[Z]. r Push [16 9] to return to regular operating mode. n WEATHER ALERT (pgs. 8, 17) q Turn the weather alert item in the SET mode ON (p. w Select WX channel; or start scanning. n TAG CHANNELS (p. 13) q Push [Y]/[Z] to select the desired channel. [. . . ]